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| author | George Kadianakis <desnacked@riseup.net> | 2019-04-03 17:50:49 +0300 |
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| committer | George Kadianakis <desnacked@riseup.net> | 2019-04-03 17:50:49 +0300 |
| commit | 828f1829c8082abd7e3f9221b63d2367ff4b9639 (patch) | |
| tree | 88400af591ea1ebaec624243178c6415d11a02d1 | |
| parent | de76862fd6177acd8c5b801af4df73bfab5d98ac (diff) | |
| parent | cfcf6de1a83ebb192374836a8c35a317fc2894e1 (diff) | |
| download | tor-828f1829c8082abd7e3f9221b63d2367ff4b9639.tar.gz tor-828f1829c8082abd7e3f9221b63d2367ff4b9639.zip | |
Merge branch 'tor-github/pr/811' into maint-0.4.0
| -rw-r--r-- | changes/bug29527 | 5 | ||||
| -rw-r--r-- | configure.ac | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/changes/bug29527 b/changes/bug29527 new file mode 100644 index 0000000000..6f36a9e1a0 --- /dev/null +++ b/changes/bug29527 @@ -0,0 +1,5 @@ + o Minor features (circuit padding): + - Stop warning about undefined behavior in the probability distribution + tests. Float division by zero may technically be undefined behaviour in + C, but it's well-defined in IEEE 754. Partial backport of 29298. + Closes ticket 29527; bugfix on 0.4.0.1-alpha. diff --git a/configure.ac b/configure.ac index 17a4d9680e..3304b5cabb 100644 --- a/configure.ac +++ b/configure.ac @@ -1198,6 +1198,11 @@ if test "$fragile_hardening" = "yes"; then AC_MSG_ERROR([The compiler supports -fsanitize=undefined, but for some reason I was not able to link when using it. Are you missing run-time support? With GCC you need libasan.*, and with Clang you need libclang_rt.ubsan*]) fi + TOR_TRY_COMPILE_WITH_CFLAGS([-fno-sanitize=float-divide-by-zero], also_link, CFLAGS_UBSAN="-fno-sanitize=float-divide-by-zero", true) + if test "$tor_cv_cflags__fno_sanitize_float_divide_by_zero" = "yes" && test "$tor_can_link__fno_sanitize_float_divide_by_zero" != "yes"; then + AC_MSG_ERROR([The compiler supports -fno-sanitize=float-divide-by-zero, but for some reason I was not able to link when using it. Are you missing run-time support? With GCC you need libasan.*, and with Clang you need libclang_rt.ubsan*]) + fi + TOR_CHECK_CFLAGS([-fno-omit-frame-pointer]) fi |